Electrical traction device.



No. 722,255. A PATENTEDMARCN, 1903.

W. W. OMALLEY, DECD.

B. M. sooTT, ADMINISTRATOR.

ELECTRICAL TRACTION DEVICE.

4 m: nomma grens co. Mmmm-mo. msnm-.1m n c V No. 7/22,255. PATENTED MAR. 10, 1903. W. W. OMALLEY, DEGD. B. M. SCOTT, ADMINIsTnAToR.

ELETRICAL TRACTION DEVICE.

APPLICATION FILED APR. 3. 1902.

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PATBNIED MAR. 10, 1903.

W. W. OMAL mmm G0 En DE T YH Bm LM D A Ty T o o s Mm B.

ELEGTRIGAL TRACTION DEVICE.

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BOYD M. SCOTT, OF OOALPORT, PENNSYLVANIA,ADMINISTRATOR OFI VALTER W. OMALLEY, DECEASED.

ELEVCTRlCAL TRACTION DEVICE.

SPECIFICATION forming part of Letters Patent No. 722,255, dated March 10, 1908. Application filed April 3, 1902. Serial No. 101,297. (No model.)

in cooperative relationship withthe driving- T all whom. t may concern:

Be it known that WALTER NV. OMALLEY, aide 4, as by means of the gear-wheels and late a citizen of the United States, and a resi- 6, as clearly shown in Fig. 2. dent of Pocahontas, Virginia, but now de- It will be understood that since it is not 5 ceased, did invent certain new and useful always practical to supplyaproperly-mount- ImprovementsinElectricalTraction Devices, ed trolley-wire above the track in all of the of which the following is a specification. laterals or drifts of a mine it becomes desir- This invention relates to electrical traction able and important to provide other means devices and certain cooperating accessories for actuating the motor, if one is employed 6o Io especially fitting such apparatus for use in on said laterals or branches, and therefore a moving mining-cars and trucks from one porsuitable electric cable is provided, combintion of the mine to another, the object being to ing in itself a lead and return wire, the said enable the motorto be directed back and forth cable being indicated in the drawings as 7, not only through the main drift of the tunone end of which is properly connected to the 15 nel, but also through the laterals thereof withdrum 8, having the head-sections 9 and 10, the out making it necessary to supply such main former head-section being also provided with tunnel and all of the laterals with a trolleythe contact-plate l1. The inner end of said wire. electric cable 7, it will be obvious, should be A further object of the invention is to proconnected to the drum by a suitable binding- 7o zo vide reliably efficient means for supplying screw, (not shown,) which will place said end the electric motor with an actuating-current of the cable in connection with the contactof electricity even in the absence of a trolleyplate 1l, and since said contact-plate is propwire and a return-ground for each of the laterly connected to the brushes 12 and 13 and eral drifts or auxiliary tunnels,it only being said brushes are in turn connected to the 2 5 necessary to provide a simple carrying-truck motor-actuating cable 14 by means of the of the usual or any preferred construction. branches 15 and 16 said motor will be actu- Other objects and advantages will be hereated by the current, `as will be obvious. It inafter made clearly apparent, reference bewill be further apparent that a suitable coning had to the accompanyingdrawings, in troller 17 will form a connecting-link in the 8o 3o which-- motor-cable 14, whereby the current may Figure 1 is a side elevation of the electric be readily wholly out olf or graduated, as motor complete, also showing the coperatdesired, by means of the devices 18 and ing storing or winding drum and controlling 19, as is common. The outer or free end mechaninsm therefor. Fig. 2 is a top plan of the cable 7 is provided with the branches 85 55 view of the mot-or complete. Fig. 3 is afront 2O and 2l, each having a suitable hook-termielevation of the motor and carrying-trucks. nal 22 and 23, respectively, whereby the Wires Fig. 4 is a detail showing an end elevation of represented by said branches 2O and 21 may the compensating winding-drum and also the be placed, respectively, in engagement or cobrushes or terminals of the electric wires. operation with the trolley-Wire 24 and the 9o 4.o Fig. 5 is a detail showing means employed to ground-rail 25 when it is desired that the moaccurately control the compensating Wndingtor shall leave the main track which is supdrum. plied with the trolley Wire and proceedv For convenience of reference to the varithroughout the length of one of the laterals ous details of the invention and cooperating or drifts unsupplied with a trolley-wire, as is 4.5 elements numerals will be employed, of which common. When the motor is thus placed iny 1 indicates the carrying wheels or trucks, of communication with the current, asindicated the usual or any preferred construction,while in Fig. 1, the motor will be actuated and may 2 designates the frame proper of the machine be driven forward toward the inner end of properly mounted upon said carrying-wheels one of the laterals or drifts represented by rcc 5o and designed to carry the electric motor 3, of the track-rails 26, and the cable 7will be paid any preferred style, said motor being placed off by the drum S until the end of the drift shall have been reached, said cable 7 being sustained by means of the grooved wheel 27, which is loosely mounted upon the shaft 2S, supported by the standards 29. The wheel 27 being thuslooselymounted upon the shaft is left free to play between the standards 29, and thus compensate for the lateral strain or pull upon the cable 7. Vhen the motor has proceeded the required distance toward the inner end of the drift or lateral tunnel andit is desired to return, the drum 8 will be automatically rotated by means of the compensating driving-wheel 30, which is secured to the shaft 31, upon which the drum 8 is rotatably mounted.

The drum 8 is provided with suitable bearings in the standards 32, and the driving- Wheel 30 is held reliablyin engagement with the contiguous truck-wheel by means of the compensatingr blocks 34 and the controllingsprings 35, said parts being suitably mounted in said standards 32, as clearly shown in the drawings. The shaft 31, therefore, is so mounted that it may be readily raised bythe lever 36, so as to bring the wheel 30 out of engagement with the contiguous truck-wheel 1, the said controlling-lever 36 being connected to the shaft 31 by means of the link 33. The said lever 36 is connected, as shown in Fig. 1, to a contiguous part of the frame 2, while the free end thereof is provided with the controlling-handle 37. The free end of the lever 36 is bent to occupy a plane oblique with respect to the vertical plane of the standard 38, said standard comprising an inverted- U-shaped bar having one side thereof provided upon its inner edge with a rack-bar 39, adapted to engage the lower edge of the lever 36, and it is therefore obvious by raising the free end of the lever the driving-Wheel 30 may be lifted out of contact with the contiguous truck-wheel 1, thereby leaving the drum to be freely unwound or rotated manually orby the simple act of driving the motor forward. Upon the return trip, however, of the motor the free end of the lever is lowered, so as to bring the wheel 30 in contact With the truckwheel, when the drum will be rotated with sufficient speed to compensate for the travel of the motor, and thereby wind the cable upon the drum, so that the same will be all taken up out of the way of the motor. By the appliance thus provided or the equivalent thereof the motor may be freely directed back and forth over lthe track Without any care on the part of the operator being directed to the cable 7, inasmuch as said cable will be stored and unwound automatically as required.

In Fig. 5 is illustrated the preferred means which may be employed to more reliably compensate for the winding and unwinding of the cable as it is stored or paid out incident to use, inasmuch as it will be observed that the truck-wheel 1 may be provided upon its outer edge with the extension or flange 40, having a plurality of apertures 41, designed to coperate with the flange 42, carried upon the outer edge or side of the driving-wheel 30, said ange 42 being provided with a plurality of lugs or teeth 43, designed to take into the apertures 41, provided in the-fiange 40. Since the diameters of the flanges 40 and 42 are identical in extent and the diameter of the winding-drum 8 formed accordingly, the rotation of the carrying-truck wheel 1 will insure that the drum 8 will be rotated so as to properly pay off and wind up the cable 7 as required incident to use.

It will be understood that various substitutes and equivalents may be employed in materializing this invention Without departing from the spirit or scope thereof, and it is therefore desired to comprehend in this application all equivalents. The carrying-frame may also be provided with the usual trolleypole 44, whereby the current may be directed from the trolley-wire 24, as is common. When, however, the motor is to be employed upon laterals unprovided with a trolley-wire, the cable 7 will be employed as hereinbefore specified. By the employment of this motor and compensating actuating-cable it is possible to avoid the use of mules or other animals now commonly employed to draw the cars from the laterals onto the main track.

The invention having thus been fully set forth, what is claimed is- 1 The herein-described traction device comprising suitable frame and carrying-truck, combined with a motor operatively connected to said truck, a cable-carrying drum rotatably mounted upon the said frame and operatively connected with the motor, a compensating cable connected to said drum and thus indirectly placed in communication with said motor, a controller for said motor, a compensating driving-Wheel havinga shaft mounted in movable bearings, a lever pivotally mounted upon the truck and a link connecting said lever with the shaft of the compensating wheel, all substantially as and for the purpose specified.

2. In a device of the character described, the combination with a: carrying-truck and a motor operatively connected therewith, of a cable-carrying drum rotatably mounted upon the truck and operatively connected with said motor,acompensatingwheel mounted on a shaft mounted in a movable bearing, a piyoted lever and a link connecting the same with said movable shaft, a compensating cable connected to said drum and thus indirectly placed in communication with said motor, a controller forming a connecting-link in said motor-cable and graduating devices for cooperation therewith.

3. In a device of the character described,y

the combination with the carrying-truck and the motor operatively connected therewith, of the drum, the driving-wheel, compensating blocks and springs therefor, the drumshaft, a lever for bringing the driving-Wheel out of engagement with the contiguous engagement with the truck-wheel, said lever IOO IIO

being mounted upon the frame and having l In Witness whereof I, as administrator as its free end bent obliqueiy to the ordinary above set forth, hereunto sign my name, in vo piane of the Standard, said standard having the presence of tWo Witnesses, at Coaiport, an inverted- U-shaped bar provided upon one Pennsylvania, on this 7th day of March, 1902.

5 edge with rack-teeth adapted to engage the BOYD M. SCOTT.

lower edge of said lever and a link oonnect- Witnesses: inge, said lever with the shaft of the drum, al1 JNO. MCNULTY,

substantially as and for the purpose specified. P. C. GATES. 

